CAJ | 학술논문

为了掌握某型自行火炮中开式链传动输弹机的关重件- 链板在时变载荷下的受力情况,在多体力学仿真软件RecurDyn中建立了输弹机的虚拟样机模型并进行了验证,在有限元分析软件ANSYS中对刚性输弹链进行了模态分析得到了其固有频率和相应振型,通过载荷文件的提取与转化,将时变载荷文件导入到ANSYS中,对关重件进行瞬态动力学分析,实现了多体动力学与有限元信息的联合仿真,提高了仿真分析的精度和效率,分析关重件的受力情况可以确定危险位置,对输弹机的故障机理及故障演化规律提供一定依据.
위료장악모형자행화포중개식련전동수탄궤적관중건- 련판재시변재하하적수력정황,재다체역학방진연건RecurDyn중건립료수탄궤적허의양궤모형병진행료험증,재유한원분석연건ANSYS중대강성수탄련진행료모태분석득도료기고유빈솔화상응진형,통과재하문건적제취여전화,장시변재하문건도입도ANSYS중,대관중건진행순태동역학분석,실현료다체동역학여유한원신식적연합방진,제고료방진분석적정도화효솔,분석관중건적수력정황가이학정위험위치,대수탄궤적고장궤리급고장연화규률제공일정의거.
In order to master the force of ramming mechanism key component which on automatic loading system of a certain artillery with time varying load, the virtual prototype simulation model of ramming mechanism is built and verifies based on the multi-body dynamics software RecurDyn,then the modal analysis is carried out in ANSYS to get the main performance of ramming chain in the low order natural frequency. The load files of multi-body dynamics system are extracted,transformed and imported into the finite element transient dynamics analysis,the co -simulation based on the heterogeneous system information of multi-body dynamic and FEA is carried out,the precision and efficiency of simulation are improved. The force of key components in ramming process is get to determine the dangerous location,the basis of the mechanisms failure and fault evolution of ramming mechanism is provided by the results.